Alert archive / Colorado / Flash Flood Watches in 2015
Flash Flood Watch 1, NWS Goodland, KS
NWS Goodland, KS issued this flash flood watch at May 23, 2015, 4:46 AM CDT for Cheyenne County, Kansas; Kit Carson County, Yuma County, Colorado; Dundy County, Nebraska. It took effect at May 23, 2015, 1:00 PM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- May 23, 2015, 4:46 AM CDT (09:46 UTC)
- In effect from
- May 23, 2015, 1:00 PM CDT
- Expired
- May 23, 2015, 10:23 PM CDT
- In force
- 9 hr
- Issued by
- NWS Goodland, KS
- Flood severity
- None
Counties Kit Carson County, CO, Yuma County, CO, Cheyenne County, KS, Dundy County, NE
The radar
The Goodland radar (KGLD), 61 km from the middle of the area, began a volume at 09:46 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 9.8 hours before the alert went out and 96 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 23 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 959 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Goodland, KS wrote its last area forecast discussion before this flash flood watch went out at May 23, 4:24 AM CDT, 22 minutes earlier.
Area forecast discussion, May 23, 4:24 AM CDT, 22 minutes before
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</html>Hazardous weather outlook, May 22, 12:04 PM CDT, 16 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GOODLAND KS 1104 AM MDT FRI MAY 22 2015 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-231715- YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON- SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA- DUNDY-HITCHCOCK-RED WILLOW- 1104 AM MDT FRI MAY 22 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL COLORADO... EXTREME SOUTHWEST NEBRASKA AND NORTHWEST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... SEVERE THUNDERSTORM MAY DEVELOP DURING THE AFTERNOON AND INTO THE EVENING ACROSS EASTERN COLORADO WITH LARGE HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES POSSIBLE. THIS THUNDERSTORM ACTIVITY WILL SPREAD NORTH AND EAST ACROSS NORTHWEST KANSAS AND SOUTHWEST NEBRASKA LATE THIS EVENING AND OVERNIGHT WITH STRONG TO SEVERE THUNDERSTORMS POSSIBLE. THE MAIN THREAT OVERNIGHT WILL BE LARGE HAIL WITH ANY STRONGER STORMS THAT DEVELOP. WIDESPREAD FOG IS EXPECTED OVERNIGHT WITH VISIBILITIES BELOW ONE MILE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... FOG WILL BEGIN TO DISSIPATE SATURDAY MORNING...WITH VISIBILITIES OF A HALF TO A QUARTER MILE WILL GRADUALLY IMPROVING BY MIDDAY. SEVERE THUNDERSTORMS MAY CONTINUE EARLY SATURDAY MORNING OVER PARTS OF NORTHWEST KANSAS AND SOUTHWEST NEBRASKA EAST OF HIGHWAY 27. DURING THE AFTERNOON A SECOND ROUND OF SEVERE WEATHER IS VERY LIKELY...BEGINNING OVER EAST CENTRAL COLORADO AND SPREADING EAST THROUGH THE AFTERNOON AND EVENING. SUNDAY STRONG TO SEVERE STORMS MAY DEVELOP EAST OF THE COLORADO BORDER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED.
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 7:18 PM CDT | Special Weather Statement | GLD | Kit Carson | 27 min |
| May 22, 7:40 PM CDT | Special Weather Statement | GLD | Kit Carson | 50 min |
| May 22, 7:43 PM CDT | Flash Flood Warning | GLD | Kit Carson | 8 hr |
| May 22, 8:28 PM CDT | Special Weather Statement | GLD | Kit Carson | 17 min |
| May 22, 8:41 PM CDT | Special Weather Statement | GLD | Kit Carson | 34 min |
| May 22, 9:19 PM CDT | Flash Flood Warning | GLD | Kit Carson | 6 hr |
| May 22, 9:33 PM CDT | Special Weather Statement | GLD | Kit Carson | 27 min |
| May 23, 5:30 PM CDT | Special Weather Statement | GLD | Cheyenne | 30 min |
| May 23, 5:54 PM CDT | Severe Thunderstorm Warning | GLD | Cheyenne | 51 min |
| May 23, 5:59 PM CDT | Special Weather Statement | GLD | Kit Carson | 31 min |
| May 23, 6:24 PM CDT | Special Weather Statement | GLD | Cheyenne | 21 min |
| May 23, 6:38 PM CDT | Special Weather Statement | GLD | Kit Carson | 37 min |
| May 23, 6:42 PM CDT | Special Weather Statement | GLD | Cheyenne | 48 min |
| May 23, 6:54 PM CDT | Special Weather Statement | GLD | Yuma | 36 min |
Nearby
Flash Flood Watches in Colorado, 2015Flash Flood Watches in Kansas, 2015Flash Flood Watches in Nebraska, 2015Every flash flood watch in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.